Finding the Fourth Proportional to 2,891,389.63, 3,990,141.45 and 1,602,251.53
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Solution
The fourth proportional to 2,891,389.63, 3,990,141.45 and 1,602,251.53 is: 2,211,120.28
Step by Step Solution
- Step 1: Write the proportion equation
2,891,389.63 : 3,990,141.45 = 1,602,251.53 : x - Step 2: Convert to fraction form
2,891,389.63/3,990,141.45 = 1,602,251.53/x - Step 3: Cross multiply
2,891,389.63x = 3,990,141.45 × 1,602,251.53 - Step 4: Simplify right side
2,891,389.63x = 6,393,210,243,178.92 - Step 5: Solve for x
x = 6,393,210,243,178.92/2,891,389.63 - Step 6: Final answer
x = 2,211,120.28
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.